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- H. P. GRANDALL.

GRAIN BINDER.

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GRAIN BINDER. No. 524,312. Patented Aug. 14, 1894.

(No Model.) 4 Sheets-Sheet 3.

H. F@ GRANDALL. GRAIN BINDER;

o. 524,312. Paten ted Aug. 14, 1894.

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H. F. GRANDALL, GRAIN BINDER.

No. 524,312. Patsnted Aug. 14, 1894.

UNITED. STATES PATENT O FICE.

HENRY F. ORANDALL, OF MILWAUKEE, WISCONSIN, AssIGNoR TO THE MILWAUKEEHARVESTER COMPANY, OF SAME PLACE. I

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent No. 524,312, dated August14, 1894.

- Application filed January 3, 1893. Serial No. 456,981- (No model.)

T0 at whom it may concern:

Be it known that I, HENRY F. CRANDALL, a citizen of the United States,residing at Milwaukee, in the county of Milwaukee and:

State of Wisconsin, have invented certain new and useful Improvements inGrain-Binders; and I do hereby declare that the following isa full,clear, and exact description of the invention, which will enable othersskilled in the art .to which it pertains to make and use the same,reference being had to the accom I panying drawings, and to the lettersof reference marked thereon, which form a part of this specification.

My invention relates to that class of grain binders in which the grainas it is delivered from the harvester into the binder is formedv intogavels by the action of packers and compressed into compact form forbinding between the needle and an opposing compressor arm.

It is Well known by those familiar with the .operation of self-bindingharvesters, that the ject of my improvement, which consists essenleasethe power previously stored, which is applied to the assistance of thebinding mechanism during the operation of compressing the gavels, andcertain novel features in the construction and arrangement of the compo-I nent parts of the machine hereinafter debinder embodying myimprovements.

scribed and pointed out in the claims. v

In the accompanying drawings like letters designate the same parts inthe several fig- Figure l is a perspective view of a grain Fig. 2 is aplan view on an enlarged scale of the power storing device and partsofthe binder immediately associated therewith. Figs. 3 and 4 are side .andend elevations, respectively, of the device shown in Fig. 2. Fig. 5 isan edge view of the bevel gear which constitutes a part of the powerstoring device,

showing the cam by whichsaid gear is disengaged from its driving pinion.Fig. 6 is a front elevation of the binder showing in full lines theneedle in the operation of compressing a gavel, and the trip pawl aboutto release the gear wheel of the power storing device, and Figs. 7 and 8are respectively end and side views of modifications of myinvention.

A represents the main frame of the binder, constructed in'the usualmanner, with two parallel tubular arms a and a, the former carrying theknotter shaft, and the latter the needle shaft. i

B is a continuously rotating shaft driven through a sprocket wheel I)from any convenient part of the harvester and supported in suitablebearingsparallel with the needle shaft by cross sills a and a projecting from arm a of the binder frame. Mounted loosely upon shaft B is apinion 6 provided with a dog b which is pivoted to one side thereof andadapted to engage with the driver 1) se-.

cured upon the rear end of said shaft B. The

dog b is held out of engagement with the d is the trip shaft supportedin suitable bearings parallel with the needle shaft 0 and provided atits front end with a trip arm D and at its rear end with an arm (1'extending under and adapted to raise the stop arm 0 the pressure of theinflowing grain turns the trip arm D outwardly, andthereby trips thebinding mechanism into gear.

The packers ff, actuated by cranks on the continuously rotating shaft B,operate to accumulate the grain against the trip arm Din the usualmanner.-

f is the compressor arm against which the needle arm 0 compresses thegrain. It is arranged to drop below the binder deck at .the proper timefor discharging the bundles, and

out of engagement with the dog 01 whenever 1 to resume its uprightposition as the needle descends below the binder deck.

E is a gear wheel mounted upon the knotter shaft and driven by pinion bthrough intermediate gear wheels e and e as shown in Fig. 1. A wrist pin6 upon ge'arwheel E connected by a pitnian e with the needle crank 0causes the vibration of the needle 0 as the wheel E revolves.

No claim is made herein to the particular construction and arrangementof the parts hereinbefore mentioned, but they are shown and described assuitable for use in connection with my-improvements, and for the purposeof more fully and clearly illustrating their application to a binder andtheir mode of operation.

Referring now to the power storing device or mechanism constituting anessential part of my invention, G is a bifurcated frame or supportbolted to a pipe sill f of the binder frame and formed or provided witha sleeve g, which is loosely mounted upon and supported by the shaft B.Upon a vertical stud g projecting upwardly from .frame Gis journaled agear wheel H which alternately drives and is driven by a pinion h fixedon shaft B.

The support G may be formed integrally with the binder frame, but whenit is applied to a machine already built, the construction shown in thedrawings is preferable.

J is a close coiled spring, adjustably connected at one end by athreaded rod j and thumb nut j to an arm a projecting from the binderframe. It is attached at its opposite end by means of tap bolt J to acrank g on gear wheel H. A roller 72 journaled upon a stud projectingfrom sill a of the binder frame over the rim of said gear wheel H holdsthe latter in mesh with pinion h, and a cam h formed or provided on saidgear wheel opposite a corresponding depression in its rim serves byengagement with said roller h to raise said gear wheel when it is in theposition shown in Figs. 2, 3 and'6 out of engage ment with said pinion.

The pawl K pivoted in sill a is arranged to engage a stop on gear wheelH, and to arrest the movement of the latter upon its disengagement frompinion h when the spring J is strained and has just passed the lineofcenters of crank g as indicated by dotted line 00 at, Fig. 2.

The hub of needle 0 is fqrmed or provided with a cam 0 which is arrangedto engage with an arm 0 of pawl K as the needle advances to compress agave], and thereby to lift said pawl out of engagement with stop 70 andrelease gear wheel H.

The crank g is placed a little in-advance of stop k, which is locateddirectly over the lowest point of cam 71. as shown in Fig. 5, the wheelH rotating in the direction indicated by the arrow in Fig. 2. By thisarrangement, as the Wheel 1-1 is passing out of engagement with pinionh, the spring J, having passed the line of centers of crank 9 carriessaid wheel H forward until it is arrested by stop 70 comingin contactwith pawl K, and its disengagement from pinion h is completed.

My improved binder, operates as follows: When the machine is set inmotion, the continuously rotating shaft B acting through pinion hrotates gear wheel H in the direction of the arrow shown in Fig. 2, andstrains the spring J. As the wheel H is raised partially out of meshwith pinion 72, by cam 71. engaging roller h the spring J, having passedthe line of centers of crank g continues therotation of said wheel H andcompletes its disengagement from pinion h. When thus disengaged frompinion h, the wheel H is arrested bystop it coming in contact with pawlK, and the energy previously expended in straining said spring J isstored therein until the wheel H is automatically released by the needlearm 0. The grain flowing into the binder is packed against the trip armD by the action of the packers in the usual manner, and when asufficient amount is thus accumulated to form a gavel, said trip armyields, and through shaft 01 and crank arm .61 raises stop arm 0 out ofengagement with dog b the dog b thus released engages with driver Z2 andconnects pinion b with the continuously rotating shaft B, therebysetting gear wheel E in motion through intermediate gears e and e Thegear wheel E-rotating in the direction of the arrow shown in Fig. 1 andacting through pitman e crank c and shaft c',raisesthe needle arm 0 tocompress the gavel. When the needle arm 0 is in the position shown byfull lines in Fig. 6, the cam c acting on arm 0 of pawl K raises saidpawl K out of engagement with stop 70 and thereby releases said gearwheel H. When thus released,'said gear wheel H is guided by the cam hand roller 1L and moved into engagement with pinion h by the contractionof spring J, and the power stored in said spring is added to thatconstantly applied to the rotation of shaft B and assists the bindingmechanismin the compression of the gavel and the completion of its work.

I wish to be understood that I do not limit mentof parts herein shownand described.

For instance, the gear wheel I-I may be made as shown in Fig. 7 withoutthe cam for raising it out of mesh with pinion h, three or more teethbeing omitted therefrom at the proper point in its face to accomplishthe same result, and in Fig. 8, in place of spring J a weight connectedby a cord or chain passing over a sheave with crank g as shown in Fig.8. a

I claim- V 1. In a grain binder, the combination with the bindingmechanism, a continuously rotating driver and means of intermittinglyconnecting the same, of a power storing device arranged to beintermittingly connected with said driver and to impart to the bindingmechanism, during the operation of compression,

7 power previously received from said driver, and a trip arranged toautomatically release said power storing device at the proper time,substantially as and for the purposes set forth.

5 2.'I-n a grain binder, the combination with and arranged to beoperated by the binding mechanism, to automatically release said powerstoring device at the proper time, substantially as and for the purposesset forth.

3. In a grain binder, the combinationvwith the binding mechanism and acontinuously rotating driving shaft provided with a pinion,

of a power storing device comprising a gear .wheel constructed andarranged to intermittingly engage said pinion, a device connectedtherewith and constructed and arranged to impart to the bindingmechanism during a portion of the revolution of said gear power receivedfrom the driving shaft during another portion of the revolution of saidgear, a stop arranged to arrest the movement of said gear when it isdisengaged from said pinion, and a trip arranged to automaticallyrelease said gear at the proper time, substantially asand for thepurposes set forth.

4:. In a grain binder, the combination-with the binding mechanism and acontinuously rotating driving shaft provided with a pinion, of a geararranged to intermittingly engage said pinion and provided with a crank,a spring connecting said crank with a relatively fixed support, a stoparranged to arrest the rotation of said gear when it is disengaged fromsaid pinion, and a'trip operated by the binding mechanism to releasesaid gear at the proper time, substantially as and for the purposes setforth.

5 5. In a grain binder, the combination with the binding mechanism and acontinuously rotating driving shaft provided with a pinion, of a geararranged to intermittingly engage with said pinion and provided with acrank,

a spring connecting said crank with a rela tively fixed support on theframe, means of adjusting the tension of said spring, a stop arranged toarrest the movement of said gear when it is disengaged from said pinion,and a trip automatically operated by the binding mechanism to releasesaid gear at or near the beginning of the operation of compression,substantially as and for the purposes set forth.

6. In a grain binder, the combination with the needle arm, an opposingcompressor arm, and a continuously rotating driving shaft provided witha pinion, of a gear arranged to en-- gage intermittingly with saidpinion and to impart to said needle arm during the operation ofcompression the power previously received from said driving shaft, and atrip operated by the needle arm to release said gearat or near thebeginning of the operation of compression, substantially as and for thepurposes set forth.

7. In a grain hinder, the combination with the needle arm, an opposingcompressor arm, and a continuously rotating driving shaft provided witha pinion, of a gear provided with a crank and with a cam, a relativelyfixed roller overhanging the rim of said gear and arranged by engagementwith said cam to disengage said gear from said pinion, a springconnecting said crank with a relatively fixed support on the frame, a.trip pawl movable into and out of engagement with a stop' on said gear,and a cam on the needle arm arranged to move said pawl out of contactwith said stop and thereby release said gear as the needle arm isadvanced against the gavel to be compressed and bound, substantially asand for the purposes set forth.

HENRY F. ORANDALL. [1,. s.]

